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EP1465433A3 - Information terminal unit and communication method based thereon - Google Patents

Information terminal unit and communication method based thereon Download PDF

Info

Publication number
EP1465433A3
EP1465433A3 EP20040005557 EP04005557A EP1465433A3 EP 1465433 A3 EP1465433 A3 EP 1465433A3 EP 20040005557 EP20040005557 EP 20040005557 EP 04005557 A EP04005557 A EP 04005557A EP 1465433 A3 EP1465433 A3 EP 1465433A3
Authority
EP
European Patent Office
Prior art keywords
image
unit
information terminal
terminal unit
images
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20040005557
Other languages
German (de)
French (fr)
Other versions
EP1465433A2 (en
Inventor
Satoshi Kajita
Takayuki Ejima
Tomonori Kataoka
Ikuo Fuchigami
Kazuyuki Imagawa
Katsuhiro Iwasa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1465433A2 publication Critical patent/EP1465433A2/en
Publication of EP1465433A3 publication Critical patent/EP1465433A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/162—User input
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/57—Motion estimation characterised by a search window with variable size or shape
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • H04N2007/145—Handheld terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The characteristic-detecting unit (20) is operable to detect characteristics from a first or second information terminal unit-captured image. The first information terminal unit-captured image has been obtained by an image input unit (10). The second information terminal unit-captured image has been decoded by an image-decoding unit (80). The characteristic-detecting unit (20) is further operable to control an image-encoding unit (30), an image-displaying unit (90), the image-decoding unit (80), or the image input unit (10) in accordance with the characteristic information. The control system provides a reduced amount of processing required for image encoding, either stops displaying the images or displays fewer images, either stops transferring the images from the image-decoding unit (80) to the image-displaying unit (90) or transfers fewer images therebetween in the same transfer direction, and provides fewer image-captured frames. This feature provides an information terminal unit characterized by thrifty power consumption.
EP20040005557 2003-03-18 2004-03-09 Information terminal unit and communication method based thereon Withdrawn EP1465433A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003073585 2003-03-18
JP2003073585A JP2004282576A (en) 2003-03-18 2003-03-18 Information terminal and communication method using the same

Publications (2)

Publication Number Publication Date
EP1465433A2 EP1465433A2 (en) 2004-10-06
EP1465433A3 true EP1465433A3 (en) 2006-01-25

Family

ID=32844568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040005557 Withdrawn EP1465433A3 (en) 2003-03-18 2004-03-09 Information terminal unit and communication method based thereon

Country Status (4)

Country Link
US (1) US20040207610A1 (en)
EP (1) EP1465433A3 (en)
JP (1) JP2004282576A (en)
CN (1) CN1531341A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1827009A1 (en) * 2006-02-28 2007-08-29 Matsushita Electric Industrial Co., Ltd. Video encoder and decoder for an improved zapping service for mobile video reception
CN101340575B (en) * 2007-07-03 2012-04-18 英华达(上海)电子有限公司 Method and terminal for dynamically regulating video code

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526052A (en) * 1993-02-25 1996-06-11 Hyundai Electronics Ind. Co., Ltd. Quantization adaptive to the human visual system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323402A (en) * 1991-02-14 1994-06-21 The Mitre Corporation Programmable systolic BCH decoder
US6690835B1 (en) * 1998-03-03 2004-02-10 Interuniversitair Micro-Elektronica Centrum (Imec Vzw) System and method of encoding video frames
US6154489A (en) * 1998-03-30 2000-11-28 Motorola, Inc. Adaptive-rate coded digital image transmission
KR100739281B1 (en) * 2000-02-21 2007-07-12 주식회사 팬택앤큐리텔 Motion estimation method and apparatus
US6999432B2 (en) * 2000-07-13 2006-02-14 Microsoft Corporation Channel and quality of service adaptation for multimedia over wireless networks
JP2002221954A (en) * 2001-01-29 2002-08-09 Hitachi Ltd Liquid crystal display
US7096034B2 (en) * 2001-10-01 2006-08-22 Microsoft Corporation System and method for reducing power consumption for wireless communications by mobile devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526052A (en) * 1993-02-25 1996-06-11 Hyundai Electronics Ind. Co., Ltd. Quantization adaptive to the human visual system

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
AHMED A ET AL: "Content adaptive motion estimation for mobile video encoders", ISCAS 2001. PROCEEDINGS OF THE 2001 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS. SYDNEY, AUSTRALIA, MAY 6 - 9, 2001, IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 5, 6 May 2001 (2001-05-06), pages 237 - 240, XP010540622, ISBN: 0-7803-6685-9 *
LENGWEHASATIT K ET AL: "A NOVEL COMPUTATIONALLY SCALABLE ALGORITHM FOR MOTION ESTIMATION", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 3309, no. 1, 28 January 1998 (1998-01-28), pages 68 - 79, XP008015063, ISSN: 0277-786X *
MOSHNYAGA V G ET AL: "Reduction of background computations in adaptive block-matching motion estimation", ISCAS 2000 - IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTMEMS, GENEVA, SWITYERLAND, vol. 1, 28 May 2000 (2000-05-28), pages I667 - I670, XP010503286 *
PARK S R ET AL: "Reconfiguration for power saving in real-time motion estimation", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 1998. PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON SEATTLE, WA, USA 12-15 MAY 1998, NEW YORK, NY, USA,IEEE, US, 12 May 1998 (1998-05-12), pages 3037 - 3040, XP010279496, ISBN: 0-7803-4428-6 *
TSE-HUA LAN ET AL: "Adaptive low power multimedia wireless communications", MULTIMEDIA SIGNAL PROCESSING, 1997., IEEE FIRST WORKSHOP ON PRINCETON, NJ, USA 23-25 JUNE 1997, NEW YORK, NY, USA,IEEE, US, 23 June 1997 (1997-06-23), pages 377 - 382, XP010233852, ISBN: 0-7803-3780-8 *

Also Published As

Publication number Publication date
JP2004282576A (en) 2004-10-07
CN1531341A (en) 2004-09-22
US20040207610A1 (en) 2004-10-21
EP1465433A2 (en) 2004-10-06

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